I'm having trouble with the consistency of the tension of my Gamma drop weight stringing machine. It has floating clamps. For example, I have to set the weight at 72 lbs to get 62 lbs tension. As a comparison my stringer has a high tech Babolat stringer and I set it at 62 lbs. Used an RDC and the tensions were the same. How can my drop weight be 10 lbs off? I prestretch my strings and adjust the clamps tightly for minimal slippage without kinking the string. Any suggestions for me? I hate stringing other peoples racquets and guessing where I should put the weight so I get the correct tension. If I want 62lbs I should just set the weight at 62lbs, not fiddle around and guess. Any help is appreciated!!